Protect yourself from Gallaxhar and the alien invaders! You control B.O.B., the country's top team member. To move him around, use the arrow keys on your keyboard. This will help you navigate around the screen. When the level starts, you will see B.O.B. at the bottom of the screen. A wave of invaders will descend on him from the top of the screen. Move him around to avoid their shots, which will cost B.O.B. lives. Push the space bar to shoot straight up. Shoot all of the invaders before they kill you, and you will win the level!